JP4444826B2 - Electrical connector - Google Patents

Abstract

An electrical connector employing a radially resistant barrel socket having a bore extending from one end which slidably receives an electrically conductive pin. A spacer member is disposed to space a stop member from the one end of the barrel socket. An inner diameter of a bore in the spacer member is greater than the inner diameter of the adjacent bores in the stop member and the barrel socket to define a recess which receives a projection carried on the pin which the pin is inserted into the barrel socket. An end cap is fixed over the stop member and the spacer member and to the barrel socket to resist axially outward flexure of an inner edge portion of the stop member upon the exertion of pull-out forces on the pin and the barrel socket tending to disengage the pin from the barrel socket.

Description

  The present invention relates generally to electrical connectors, and more particularly to electrical sockets, also called radially elastic barrel terminals. In this barrel terminal, a cylindrical electrical prong or pin is attached to a socket which is internally defined by a plurality of contact strips or wires bent into a hyperbolic shape extending radially inward by strip ends offset at an angle. Insert in the axial direction.

Radially electrical socket i.e. barrel end of the elastic, patent documents shown at the end of this chapter, namely U.S. Patent No. 4, of a type well known electrical shown in 657,335 and U.S. Patent No. 4,734,063 It is a connector.

  In such an electrical socket or barrel terminal, the generally rectangular stamped body has two transversely spaced apart inwardly spaced from and parallel to the edges of the sheet. A web is formed. A plurality of evenly spaced parallel slots are formed between the inner edges of the transverse webs, and a plurality of evenly spaced parallel lengthwise strips are formed. These strips are joined at both ends to the inner edges of both transverse webs. Other slots extending in the lengthwise direction are coaxially formed in the sheet and extend equally from the short edge of the blank inward to the outer edge of the transverse web and project outwardly from each transverse web. A plurality of longitudinally extending tabs are formed that are spaced apart.

  Next, a blank or sheet is formed into a cylindrical body. The longitudinal strip extends parallel to the axis of the cylindrical sheet thus formed. An interference fit cylindrical sleeve is mounted coaxially around the outer periphery of the cylindrical blank. The sleeve extends substantially axially between the outer edges of the transverse web. The mounting tabs at each end of the blank are then bent outwardly across the edge of the sleeve into a radially extending relationship with respect to the sleeve.

  The relatively tight annular collar or outer barrel is then advanced axially against the radially projecting tab at one end of the sleeve, attached to one end of the sleeve, and the tab at that end of the sleeve is pressed downward. Then, the outer surface and the surface of one end of the sleeve face each other and engage with each other. The mounting of the annular collar on the sleeve is such that the end of the cylindrical blank on which the collar is placed is fixedly clamped to the sleeve so that it does not move both axially and rotationally relative to the sleeve. Selected.

  A tool having an annular array of axially projecting teeth that are evenly spaced is then typically engaged with a radially projecting tab at the opposite end of the sleeve. The teeth provided on the tool are arranged to project axially between the radially projecting tabs, just adjacent to the outer surface of the cylindrical sleeve. The tool is then rotated about the longitudinal axis of the cylindrical sleeve while holding the sleeve stationary so that the engaged tabs are rotated approximately 15 ° to 45 ° from their original rotational orientation relative to the sleeve. And fold the tab at the opposite end of the sleeve. The tool is then withdrawn and a second annular collar or outer barrel is forced onto the tab and sleeve, and the opposite end of the blank is fixedly positioned at the angularly offset position established by the tool.

  When completed, such an electrical socket has a longitudinal strip that extends generally along a straight line between the angularly offset positions adjacent the ends of the cylindrical sleeve. The inner enclosure cooperatively defined by the longitudinal strips has a maximum radius equal to where the strips are joined to their respective webs, and a cylindrical sleeve with a somewhat smaller radius in the middle of the strip length It is the surface of the rotating body coaxial with the axis of. The minimum radius in the middle of both ends of the strip is chosen to be slightly smaller than the radius of the cylindrical connector pins to be inserted into the barrel socket, so that the individual longitudinal strips are lengthened to insert the pins. Stretch slightly in the direction and grip the pin firmly with friction when the pin sits in the barrel socket.

  To do this differently, due to the angular offset orientation of each end of each strip, each strip is radially spaced from the inner wall of the sleeve and is the largest relative to the outer sleeve in the middle between the sleeve ends. Gradually reach the radial spacing.

  Such a radially elastic electrical barrel socket provides an effective electrical connector that securely engages the insertable pin, while at the same time allowing the pin to be easily pulled out of the socket and inserted it can. Such a connector further provides a large electrical contact area between the pin and the socket, so that such a connector can be used in high current applications.

  Furthermore, it is well known to form such electrical connectors in such a way that one of the collars is formed as an integral part or extension of a support member that forms part of the overall connector. The assembly process discussed above is the same except that one collar at one end and a hollow cylindrical extension of the connector are used instead of separate collars at both ends of the socket. The connector can be inserted into an electrical socket, such as a vehicle alternator, or otherwise electrically connected. The hollow cylindrical end of the support receives and holds the tab at the first end of the sleeve and prevents it from rotating when the opposite tab is angularly offset. The collar or end cap is then placed over the rotated tab and the tab is maintained in the rotated position.

  Such a radially resilient socket is adapted to receive a generally cylindrical pin or terminal. These pins or terminals slide into bores extending through the contacts and are forced into engagement with hyperbolic shaped contact grid contact strips. The pin displaces the curved strip, thereby generating a holding force that holds the pin to the socket or barrel terminal with a predetermined holding or pulling force resistance.

  Detent mechanisms used in pins and sockets to increase the pull-out resistance that holds the pins in the socket are also well known in the connector art. Such detent mechanisms typically use radially inwardly extending protrusions provided on one or more of the grid strips. The protrusion engages with an annular recess formed in the pin. This detent not only forms a detectable insertion stop for placing the pin into the electrical socket, but also by mechanically and frictionally engaging between the grid contact protrusion and the annular recess of the pin, Increase the pulling force resistance.

However, such a detent mechanism only provides a predetermined amount of pulling force resistance. Certain electrical connector applications desirably require increasing the magnitude of the pull-out force resistance.
U.S. Pat. No. 4,657,335 U.S. Pat. No. 4,734,063

  Thus, it is desirable to provide an electrical connector that uses a radially resistive electrical socket with a high pulling force resistance with minimal changes to the socket design. Furthermore, it would be desirable to provide such an electrical connector in which the pullout force resistance can be easily changed to meet the requirements of various applications.

In one aspect of the invention, the electrical connector is disclosed as including a radially elastic barrel socket with a first inner diameter bore extending from the first end. The stop member has a bore with a second inner diameter that is at least about the same as the first inner diameter of the bore of the barrel socket. Means are provided for spacing the stop member from one end of the barrel socket and defining a recess between the second inner diameter of the stop member bore and one end of the barrel socket. The recess has a second inner diameter and a third inner diameter that is larger than one end of the bore of the barrel socket. Means are provided for securing the stop member and spacing means with respect to one end of the barrel socket. A conductive member having end pins can be inserted into the bore of the barrel socket through the securing means, the spacing means, and the stop member. At least one protrusion is provided on the pin. The at least one protrusion can be inserted through a bore formed in the securing means into a recess defined by the spacing means. Up to a predetermined withdrawal force, the inner edge of the bore of the securing means and the inner edge of the bore of the spacing means resist at least one protrusion of the pin from moving axially outward from one end of the barrel socket.

  In another feature, the spacing means is a spacer member having a third inner diameter bore. The third inner diameter is greater than the second inner diameter of the stop member and the first inner diameter of the bore of the barrel socket. The recess is formed radially inward of the third inner diameter of the spacer member.

  In another feature, the securing means includes an end cap having a side wall and an end wall. The end wall is formed with a bore having an inner diameter large enough to allow at least one protrusion to freely pass therethrough. The inner edge of the end wall that surrounds the inner diameter of the bore causes the inner edge of the spacing means to be deflected axially outward and force is exerted on the pin and connector to move the pin axially outward relative to one end of the barrel socket. In order to avoid this, it is arranged adjacent to the inner edge of the spacing means surrounding the bore of the spacing means. The end cap is preferably fixedly attached to the barrel socket.

In one aspect, the at least one protrusion includes a single continuous annular protrusion provided on the pin.
In another feature, the spacing means has an inner edge that surrounds the bore of the spacing means and can be deflected axially upon insertion of the pin projection to pass the projection through the recess. The fixing means and the separation means resist the pin from being bent in the axial direction so that the inner edge of the separation means moves away from one end of the barrel socket.

  The electrical connector according to the present invention uniquely provides various insertion force levels, ie push-in and pull-out force levels, with the same connector structure. By adding a few additional components without modification to the existing elastic barrel socket, the protrusion of the end pin portion in the form of a conductive end is in a recess formed at one end of the electrical connector. Provides a relatively small indentation force to capture. The withdrawal movement from the barrel socket contact in the form of protrusions and ends is resisted to a relatively high withdrawal force level and resists separation of the conductive member from the connector body.

  The electrical connector of the present invention has a large number of different feature radii with increased pulling force resistance of pins that can be inserted into the electrical socket and provided with pulling force resistance means that can be variously selected to meet the requirements of various applications. Use elastic electrical sockets in the direction. This improvement in pull-out force resistance is achieved by making several changes to the electrical socket structure.

  Various features, advantages and other uses of the present invention will become more apparent with reference to the following detailed description and accompanying drawings.

  Electrical connectors are radially elastic electrical contacts or sockets with hyperbolic contact strips or wires, holders that accept at least a portion of the sockets, hereinafter referred to as “barrel sockets or terminals”, and slidable into the barrel sockets Use the conductive end form inserted into the. The conductive end form completes an electrical circuit between a circuit element connected or supported in the end form and a circuit element connected or supported by a holder to which the barrel socket is attached.

The structure of the barrel socket used in the electrical connector according to one aspect of the present invention is best explained by the description of its manufacturing method.
The first step of manufacturing the barrel socket is a step of punching a blank of the form shown in FIG. 1 from a flat sheet metal piece. Sheet metal pieces are beryllium copper alloys that are both mechanical and electrical suitable for electrical connector applications.

  Referring to FIG. 1, a blank having a reference numeral 20 is punched out in a rectangular shape. The blank is formed with a pair of spaced apart laterally extending connecting web portions 22 that are evenly spaced between the respective inner edges of the web portions 22. Are connected to each other by a plurality of parallel longitudinally extending strips 24 spaced apart from each other. A plurality of spaced apart parallel tabs 26 project outward in the longitudinal direction from the outer edge of each lateral web 22.

  The second step of the manufacturing process is shown in FIG. In this view, the blank 20 is formed in a horizontal cylindrical tubular configuration, with the cylindrical tube axis extending parallel to the longitudinal strip 24 and the tabs 26.

  After the blank 20 has been formed into the cylindrical tubular shape of FIG. 2, an interference fit cylindrical sleeve 28 is placed over the cylindrical tube as shown in FIG. The axial length of the sleeve 28 is sufficient to extend over both the transverse webs 22 and leave the tabs 26 protruding outward from the ends of the sleeve 28.

In the next step shown in FIG. 4, the protruding tab 26 is expanded across one edge of the sleeve 28, ie, bent outwardly and protrudes radially outward of the sleeve axis.
In the next step of the process shown in FIG. 5, the temporary first housing or jig 30 has a central bore 32 that extends at least from the first end 34 to the opposite end 36. The diameter of the bore 32 is greater than the diameter of the cylindrical sleeve 28 by a distance equal to the thickness of the tab 26. The first housing 30 is pushed axially into one end of the sleeve 28 or the sleeve 28 is pushed axially into one of the first and second ends 34 and 36 of the first housing 30. By forcibly interconnecting the sleeve 28 and the first housing 30, the radially extended tab 26 at one end of the sleeve 28 is bent back so that the outer surfaces of the sleeve 28 face to face with each other. The bore 32 has an inner diameter such that the first housing 30 clamps the tab 26 against the outer surface of the sleeve 28 when the first housing 30, the first end of the blank 20 and the sleeve 28 are in the position shown in FIG. A force is selected to exert sufficient force on the tab 26 to prevent the 26 from moving axially or rotationally relative to the sleeve 28.

Next, as shown in FIG. 6, spread the tabs of the opposite end of the sleeve 28 at the end edge portion on the opposite side of the sleeve 28, i.e. bend radially outward, radially outwardly projecting from the axis of the sleeve 2 8 Let

  In the next step shown in FIG. 7, a tubular tool 50 having at one end a tooth 52 projecting in the axial direction with even spacing is engaged with the tab 26 projecting radially outward from one end of the sleeve 28. Combine. The tool 50 has an inner diameter that provides a loose sliding fit with the outer diameter of the sleeve 28 and the teeth 52 are spaced apart from each other to project through the space between adjacent radially projecting tabs 26.

  The tool 50 is seated with its teeth 52 placed between the radially projecting tabs 26, the first housing 30 is held against rotation by a clamp or the like, and the tool 50 is coaxial with the sleeve 28. Specifically, it is rotated over a predetermined angle of about 15 ° to about 45 °. By this action of the tool 50, one end of the blank or sheet 20 is rotatably offset from a pre-fixed end that is held against rotation by the first housing 30 relative to the sleeve 28. Preferably, the beryllium copper alloy used to form the blank or sheet 20 has a certain degree of elasticity, but the property that the blank 20 is permanently set in the rotational position by the rotation applied by the tool 50. It has.

  Next, as shown in FIG. 8, the second housing 40 also includes a through bore 42 that extends from the first end 44 to the opposite second end 46. The second housing is pushed axially onto the sleeve 28 to interfere with the radially outwardly extending tabs 26, or the ends of the sleeve 28 and blank 20 extending outwardly from the first housing 30 are connected to the second housing 40. Push it into the bore 42 in the axial direction. Next, the second housing 42 is advanced with respect to the first housing 30, and the inner surface of the bore 42 of the second housing 40 is forcibly fitted to the tab 26 that is offset at an angle extending in the radial direction. Thus, the tab 26 is bent, and the outer surface and the surface of the other end of the sleeve 28 face each other and engage with each other.

  The second housing 40 and the first housing 30 are advanced with respect to each other so as to be substantially in contact with each other, and the tabs 26 that are offset at angles of the ends of the sleeve 28 are held so as not to move with respect to the outer surface of the sleeve 28. To do.

  However, the barrel socket or terminal described above can access the tab 26 of the blank or grid 20 from either end for performing the bending, inserting and locking operations described above.

  According to one feature of the barrel terminal that can be used with the connector of the present invention, the modified barrel terminal is attached to the terminal housing 60 as shown in FIG. The terminal housing includes a barrel terminal receiving portion or body 62 and a conductor or pin receiving portion 64 that is axially or angularly spaced generally adjacent thereto. Thus, although the barrel terminal receiving portion or housing 62 is shown in axial alignment with the pin or conductor receiving portion or body 64, these two body portions 62 and 64 are adjacent or connected. However, it will be understood that it may be arranged in any angular orientation, for example 45 °, 90 °, etc.

  The barrel terminal receiving portion or body 62 has a first open end 66, referred to below as “first end or outer end”. A bore 68 extends from the first outer end 66 to the inner wall 70. This bore is also called "blind end" in the text below.

The pin receiving body 64 similarly has a first open end 72 and a through bore 74 extending from the first open end 72 to the inner wall 76. The bore 74 is formed to receive a pin or conductor in an electrically connected state.
Furthermore, the pin receiving body 64 can also be formed as a part of a device such as a battery. In this case, the body 64 is formed as an integral part of the battery within an internal electrical connection formed to the body 64 by suitable means.

  The terminal housing 60 shown in FIG. 9 can be manufactured from either a stamped part formed from a flat metal stock and then machined from a metal rod stock or from a stamped part formed into a desired cylindrical configuration. .

  A barrel terminal 80 formed according to any one of several different methods can be attached to the bore 68 of the barrel terminal body 62. As will be described in more detail below, barrel terminal 80 is formed of a stamped grid having webs 82 and 84 at opposite ends of a plurality of interconnect strips 86. The tab 88 extends in the opposite direction from each of the webs 82 and 84, and is fixed to the barrel terminal body 62 in place by an outer end anchor and an inner end anchor described below. When the strip 86 is offset at an angle from end to end, and each strip is arranged in a hyperbolic shape from end to end, the inner diameter at a substantially central location is smaller than the strip 82 in a normal non-hyperbolic state. Become. This diameter is typically smaller than the outer diameter of the pin or conductor inserted into the barrel terminal 80, and the barrel terminal and the inserted pin are firmly electrically connected to increase the pin pull-out holding force.

  In another aspect, individual wires can be used in place of the strips 86 of the barrel terminal 80. These wires are initially held by narrow neck portions or ribs in place between the ends of the spaced wires during the process of offsetting the hyperbola at an angle. In this case, each end of the wire acts as a tab for fixing to the barrel terminal body 62 by an outer end anchor and an inner end anchor described below. It will be understood that such a wire configuration further constitutes the term “grid” as used herein. As described in more detail below, some features of barrel terminal 80 do not require tabs at either the outer or inner end of barrel terminal 80.

Referring now to FIGS. 17-21, these figures illustrate the formation process according to another feature of a method for manufacturing an electrical connector using a radially resilient socket.
FIG. 17 shows a sleeve 28. This forming step is similar to that described above and shown in FIG. 4, and the blank 20 is formed into a cylindrical body by bending or the like. As shown in FIG. 3, the outer sleeve 28 is arranged around the blank with the tabs 26 protruding outward from both ends of the sleeve 28. However, in this method, the tab 26 is bent or folded at both ends of the sleeve 28 about the outer end of the sleeve 28 and returned onto the outer surface of the sleeve 28 to form the cartridge 29.

  The first end 150 of the cartridge 29 is then inserted into a first housing or jig 152 having a bore 154, as shown in FIG. The inner diameter of the bore 154 is such that when the first end 150 of the cartridge 29 is inserted into the first housing 152, the tab 26 is folded so that the outer surface and the surface of the sleeve 28 face each other and engage closely. Furthermore, it is slightly larger than the outer diameter of the sleeve 28 by a distance equal to the thickness of the tab 26. The cartridge 29 is only partially inserted into the bore 154 of the first housing 152 and the second end 156 of the sleeve 28 projects outwardly from the first housing 152 along with the tab 26 of the second end 156 of the sleeve 28. It should be noted.

  The first end 150 of the cartridge 29 is bored in the bore of the first housing 152 until the first end 150 engages with one end of a rotatable tool 158 that is rotatably and axially disposed within the bore 154. 154 is inserted. The tool 158 may be similar to the tool 50 described above and shown in FIG. 7, with teeth engaging the space between adjacent folded tabs 26 at the first end 150 of the sleeve 28. Have.

  Next, as shown in FIG. 19, the second end 156 of the cartridge 29 is inserted into the bore 160 of the cylindrical portion 162 of the terminal, holder, support, or electrical device, or otherwise engaged with the bore. Combine. Terminals, holders, supports, or electrical devices are all referred to below as holders 164. Cylindrical portion 162 is disposed at one end of a support or base 166, and at its opposite end, by way of example only, another terminal 172 that supports a conductor, which is also merely an example. A hole 168 for receiving the fastener 170 shown in FIG. 21 for fixing to the holder 164 is provided.

  The bore 160 of the cylindrical portion 162 can be divided into two sections, a first end section 174 and a second end section 176. The inner diameter of the first end section 174 is selected to form a press fit or interference fit with the tab 26 of the second end 156 of the cartridge 29 when the second end 156 of the cartridge 29 is inserted into the bore 160. The second end section 176 of the bore 160 has a second end 156 and a folded tab 26 of the outer sleeve 28 that can freely pass therethrough and press fit with the first end section 174 of the bore 160. The diameter is larger than that of the one end section 174. In this way, the second end 156 of the cartridge 29 is forcibly attached to the cylindrical portion 162 of the holder 164 and the tab 26 at the second end 156 of the outer sleeve 28 is in firm electrical contact with the inner surface of the bore 160. .

  The cartridge 29 is pushed into the bore 160 until the entire outer sleeve and the folded tab 26 of the first end 150 of the cartridge 29 are fully contained within the bore 160 as shown in FIG.

As described above, the inner diameter of the second end section 176 of the bore 160 is larger than the adjacent first end section 174. This can be formed in a number of structures, including a structure in which the taper in diameter gradually decreases from the second end section 176 to the first end section 174 along the length of the bore 160. In another aspect, a step may be formed in the middle of the end of the cylindrical portion 162 to form two sections having different diameters. One segment is the first end segment 174 of the bore 160 and the other segment is the second end segment 176.

  As shown in FIG. 20, when the cartridge 29 is fully inserted into the bore 160, the second end 156 of the cartridge 29 and the folded tab 26 supported by the second end 156 of the cylindrical portion 162 surrounding the bore 160. Press-fit engagement with inner surface. However, the tab 26 at the opposite end of the cartridge 29 is only loosely disposed between the inner surface of the second end section 176 of the bore 160 and the outer surface of the sleeve 28 adjacent thereto.

  The rotatable tool 158 is advanced by a suitable driving source such as a pressurized fluid cylinder or an electric motor driving device, and the first end 150 of the cartridge 29 and the folding tab 26 supported by the cartridge are moved from the first housing 152 to the holder 164. Can be slidably pushed into the bore 160 of the cylindrical portion 162 of the cylinder.

  Next, the rotatable tool 158 is rotated as indicated by the arrow in FIG. 20 to angularly offset the tab 26 at the first end 150 of the cartridge 29 from the corresponding tab 26 at the second end 156 of the cartridge 29. This provides the strip 24 between the cylindrical blank webs 22 with the desired hyperbolic shape as described above. With the rotatable tool 158 held in the rotational position, an upsetting operation is applied to the end portion of the cylindrical portion 162 of the holder 164 surrounding the second end section 176 of the bore 160, thereby providing an end portion of the cylindrical portion 162. The inner diameter of the end portion of the cylindrical portion 162 is tightly engaged with the tab 26 of the first end 150 of the outer sleeve 28 so that the tab 26 fits into the outer surface and bore of the sleeve 28. It is held tightly between and in contact with the inner surface of 160. The rotatable tool 158 is then retracted with the first housing 152, leaving the finished connector labeled with reference numeral 180 in FIG.

  As shown in FIG. 21, the terminal 172 that supports the conductor 173 may be fixedly attached to the hole 168 of the support 166 of the holder 164 by a fastener or screw 170 having a thread. In another aspect, the holder 164 and the terminal 172 may be a one-piece member similar to the holder 62. An elongated cylindrical pin 182 is removably inserted into the barrel socket 184, and the electrical device or circuit to which the pin 182 is attached is connected to the circuit or conductor or electrical device to which the conductor 173 and the terminal 172 are connected. Can be connected through.

  In yet another method, the bore 160 is smooth but sized to press fit with the tab 26. First, the cartridge 29 is inserted into the bore 160 halfway. The tool 158 is then rotated 15 ° to 45 ° to offset the tab 26 and one end of the inner strip from the opposite tab and the opposite strip. The tool 158 is then advanced in the axial direction, pushing the cartridge 29 fully into the bore 160, thereby holding the tabs 26 at both ends of the cartridge 29 in an angularly offset state by press fitting with the inner surface of the bore 160.

Another method of forming the blank 20 and outer sleeve 28 described above and shown in FIGS. 1-4 as an integral one-piece member is shown in FIGS.
Here, a generally rectangular first solid end portion 186 and a plurality of elongated overall flat strips spaced in parallel and equally spaced from one end of the solid end portion 186 in the longitudinal direction. A one-piece sheet metal blank 184 containing 188 is formed. The entire blank 184 can be formed of a suitable conductor such as beryllium copper. The strip 188 is integrally aligned by welding to one end of the solid end portion 186 at the first end 190 or is stamped together with the solid portion 186. In another aspect, the strips 188 may be joined to the solid end portions 186 along the lines 191 or 193 at these strips 188 or suitably formed end portions of the solid end portions 186.

  Next, all the strips 188 are bent, ie, the second end 195 of the solid end portion 186 is folded back at the first end 190 and remains parallel as shown in FIG. As shown here, the free end 192 of each strip 188 extends beyond the first end 194 of the solid end portion 186. The portion of the strip 188 that protrudes beyond the first end 194 forms a tab 196.

  Next, as shown in FIG. 25, the solid end portion 186 is folded into a cylindrical sleeve 198, and the edges are fixedly joined to each other by welding or the like. The folding operation causes the strip 188 to overlap one surface of the solid end portion 186 such that the strip 188 is disposed within the resulting cylindrical sleeve 198 as shown in FIG. The tab 196 remains protruding outward beyond the first end 194 of the sleeve 198.

  At this point in forming the sleeve 198, the second end 195 is inserted into and closely engaged with the bore of the holder, as described above. After applying an angular offset to one end of strip 188 by any of the forming methods described above, tab 196 is folded back to the outer surface of sleeve 198 as described above and shown in FIG. Secure to the bore.

  FIG. 22 shows three different attachment positions or methods for attaching the tab 196 or the end portion of the tab 196 or the strip 188 to the outer sleeve 198. All three of these are simply shown in a single sleeve 198 for convenience, but in actual construction one or more of these attachment methods may be applied to all strips 188 and tabs 196 of a connector. It will be understood that it can be used.

  A common feature of these different attachment methods is that the end portion of tab 196 or strip 188 is secured to sleeve 198 by welding. Since the thickness of the tab 196 or strip 188 must not be increased by welding, a small indentation or hole 200 may be formed at each weld location on the end portion of the tab 196 or strip 188.

  Thus, according to one feature, the tab 196 is welded to the outer surface of the sleeve 198 after being folded back to the first end 194 of the sleeve 198 as in the embodiment of the present invention described above. In another aspect, the tab 196 can be shortened to define a portion 202 having a predetermined length that is folded back only on the first end 194 of the sleeve 198.

  According to another feature of the present invention, the strip 188 is formed without the tab 196 such that the strip 188 terminates adjacent the first end 194 of the sleeve 198 at the end 204 within the bore of the sleeve 198.

  Regardless of which manufacturing technique is used, eventually the strip 188 remains parallel at the first end 194 of the sleeve 198 and the movable end portion of the strip 188 is connected to the first end of the sleeve 198. The result is that at one end it is fixed to the first end 194 of the sleeve 198 after being rotated by the desired amount as in the formation method described above.

  In the following description, after applying a hyperbolic angled offset to the strip 86 of the barrel terminal 80 (this is only partially shown in the accompanying drawings), one end of the barrel terminal 80 is connected to the barrel terminal body. A number of different features of the outer grid anchor used to securely attach in a fixed position relative to 62 are included.

  As shown in FIG. 10, in one feature, the outer end 96 of the barrel terminal body 62 extends outwardly with an annular flange. The tab 88 at the outer end of the barrel terminal 80 is either pre-bent or bent radially outward after the barrel terminal 80 is inserted into the bore 68 of the barrel terminal body 62. The radially arranged tabs 88 are secured to the outer surface of the flange 96 by suitable means such as welding. Low temperature brazing or soldering may be used to secure the tab 88 to the flange 96, but for a typical beryllium copper structure in the grid of barrel terminals 80, an ultrasonic welding process or impulse (capacitor discharge) Either of the welding processes is more suitable. This is because these processes generate only temporary localized heating at the limited contact surfaces of the tabs 88 and flanges 96, thereby having little adverse effect on the metal properties of the rest of the grid or barrel terminal 80. Because.

  The outer grid anchor shown in FIG. 11 is the same as the outer grid anchor described above and shown in FIG. 10 except that the flange 96 extending in the radial direction is not provided at the outer end of the barrel terminal body 62. is there. Rather, the outer end 98 of the barrel terminal body 62 is simply the axial end of the body sidewall. The tab 88 is again bent radially outward or preformed to wrap around and engage the outer end 98. The tab 88 is then secured to the end 98 by welding as described above. In order to form a weld, a depression is formed on one facing surface of either the tab 88 or the end of the body 62.

  In the outer grid anchor feature shown in FIG. 12, the overall length of the barrel terminal 80 is such that only the ends of the strips 86 that form the tab 88 or the grid of barrel terminals 80 are angled in a pre-stressed shape. In addition, the contact force directed outward in the radial direction is determined to be exerted on the inner surface 116 adjacent to the inner surface of the end portion 102 of the barrel terminal body 62. The tab 88 is formed by forming an angular offset between the ends of the grid strip of the barrel terminal 80 and then by a suitable welding process such as ultrasonic welding or impulse capacitor discharge welding, or in some cases cold brazing or soldering. Fixed in place.

  The inner grid anchor 258 shown in FIGS. 13 and 14 is used to fix the inner end of the barrel terminal to the holder. The inner grid anchor 258 requires a terminal body 62 in the form of a hollow cylinder. The hollow cylinder is formed from a flat material and is formed or bent into a cylindrical shape with bore portions 68 and 74 extending in opposite directions. At anchor 258, barrel terminal 80 has a tab 90 or end of strip 86 that is substantially aligned with strip 86 and does not have a pre-formed angle that extends largely inward. The flattened grid containing the strips 86 or the individual wires forming the strips 86 are secured by an inner grid fastening technique using a weld indicated at the inner end of each strip 86 by reference numeral 258. The welding process or joining process must be selected such that the heat and pressure of the process do not adversely affect the metal properties of the barrel terminal 80 grid or terminal body 62 as a whole. Suitable joining processes include ultrasonic welding, impulse / capacitor discharge welding, and low temperature brazing / soldering.

  After the inner end or tab 90 of the strip 86 of the barrel terminal 80 is welded to the inner surface of the terminal housing 60, both side edges are fixedly joined to each other by mutual locking or welding of the mechanical connecting portion. Formed into a cylindrical shape.

  15 and 16 show yet another inner grid anchor 262. This inner grid anchor 262 is suitable for use in the barrel terminal body 62 described above and shown in FIG. Barrel terminal 80 has a tab 90 preformed or bent at the end of strip 86 in an angled overall vertical orientation. The barrel terminal 80 may further be formed with individual strips. These strips are not initially provided in a unitary grid feature connected by a web.

  The inner grid anchor 262 includes a protrusion or contact point 264 formed on the outer surface of each protrusion 90 facing the inner wall 70 of the bore 68. These protrusions 264 are perpendicular to the axis of the bore 68 and are easily accessible by the welding equipment through the bore 68. The common planar array of protrusions 264 greatly facilitates “gang welding” of the protrusions 264 to the inner wall 70 of the barrel terminal housing 62, shown by welds 266 in FIG. 16.

  Referring now to FIGS. 26 and 27, there is shown an electrical barrel socket 300 formed according to another method. The socket 300 is formed as a cartridge that can be attached to a working element as described above.

  The socket 300 includes contacts or grids such as the grid 20 described above and shown in FIG. Grid 20, which may be initially formed as a flat blank, is formed into a cylindrical tube shape, as shown in FIG. 2, i.e. bent, into a cylindrical concentric outer sleeve 28 as shown in FIG. Inserted.

  In this aspect of the invention, the tabs 26 protruding from the web at each end of the grid 20 are configured to wrap in place with respect to one end 302 of the sleeve 28, the outer end wall 304 of the sleeve 28, or the outer end surface 306 of the sleeve 28. These are all shown in FIG. 25. Thus, by way of example only, the tabs 26 are bent on and close to the end wall 304 of the sleeve 28 radially outward from the axially extending cylindrical shape shown in FIG. It is shown as having a predetermined length that can contact the wall. The tab 26 is fixed to the end wall 304 of the sleeve 28 by welding such as ultrasonic welding, spot welding, impulse capacitor discharge welding, or in some cases by low temperature brazing or soldering.

  The tab 26 may be further welded to the inner surface of the sleeve 28 adjacent to the end wall 304 in the same manner as shown in FIG. 26, or the length may be increased as indicated by reference numeral 196 in FIG. May be wrapped around an end portion 306 of the outer surface of the sleeve 28 and then welded to the outer surface 306 of the sleeve 28.

  Before securing the tab 26 at the opposite end of the grid 20 to any of the inner end face, the opposite end wall 305, or the outer end face 306 of the sleeve 28 by any of the welding methods described above, At the end, an angular offset or rotation is applied to the tab 28 as described above.

  The socket 300 described above provides a compact socket in the form of a cartridge. This socket can be attached to the bore of the working element to accept a conductor or pin with a smooth sliding connection. By configuring the strip of grid 20 between both webs 22 of grid 20 in a hyperbolic shape, high friction is in intimate electrical contact with the inserted conductive member and resists withdrawal of the conductor or pin from socket 300. Provides power.

  Reference is now made to FIGS. 28 and 29, which illustrate another feature of the inner or blind end anchor that can be used with the socket shown in FIG. The anchor 352 is in the form of a conical shaped annular disc 354 that is preferably formed of a softer material than that used to form the barrel terminal body 62. As shown in FIG. 28, the disk 354 has a V shape in which first and second V-shaped walls 356 and 358 are formed on both sides.

  In this feature, the tab 90 is first pre-bent to be seated on the inner wall 70 of the bore 68 of the barrel terminal body 62 to an angled or vertical shape with respect to the rest of the strip 86. After the barrel terminal 80 is inserted into the bore 68 with the tab 90 positioned adjacent to the inner wall 70, force is exerted by a punch or other tool member inserted into the bore 68 inside the strip 86 of the barrel terminal 80. In addition to the first surface 356 of the disk 354 in the direction of the arrow 29, the V-shaped disk 354 is deformed into a substantially flat shape as shown in FIG. This displaces the soft material of the disk 354 radially and away from the direction of the applied force axially outward, causing the tab 90 of the barrel terminal 80 to move relative to the inner wall 70 and to the adjacent side wall of the bore 68. On the other hand, as shown in FIG.

30 and 31 show another inner grid anchor 368. In this aspect of the invention, the inner grid anchor 3 68 includes a central bore or holes 372 includes a flat washer 370 on the entire formed through. A hole 372 in the washer 370 receives a nib or protrusion 374 that is an integral extension of the solid portion of the barrel terminal body 62 that forms the inner wall 70. The nib 374 initially has a generally cylindrical shape and has a diameter that allows the nib 374 to easily pass through the central bore 372 of the washer 370.

During the assembly process, a tab 90 provided on the strip 86 of the barrel terminal 80 is inserted into the bore 68 of the barrel terminal body 62 with an angled or unbent barrel terminal 80 at an angle with respect to the rest of the strip 86. after, apply a force to the outer surface of the nib 374 in the direction of the arrow in FIG 1. This causes the material of the nib 374 to expand outwardly, causing the nib 374 to mushroom radially outward, thereby forcing the periphery of the washer 370 to expand the adjacent portion of the tab 90 or strip 86 in FIG. As shown, it is locked to the wall of the barrel terminal body 62. By forming the nib 374 in the radially outward mushroom shape, the outer end surface of the nib 374 expands radially onto the adjacent portion of the washer 370 adjacent to the bore 372 of the washer 370. This interference prevents the washer 370 and the barrel terminal 80 from being pulled straight out of the main body 62.

  Another feature of the inner grid anchor 396 is shown in FIGS. Anchor 396 can be used in connector applications where the material forming barrel terminal body 62 is not malleable enough to allow deformation of an integrally formed nib such as nib 368.

  In this application, a bore 398 is formed between the inner wall 70 and the opposite inner wall 76 through a solid central portion of the terminal housing 60. An enlarged end flange 402 is provided at one end of the cylindrical rivet-shaped body 400. The body 400 is inserted into the bore 398 and the enlarged end flange 402 is positioned adjacent to the inner wall 76 of the bore 74 of the terminal housing 60. The other end of the main body 400 is provided with a counterbore 404 extending beyond the tab 90 provided at the end of the strip 86 of the barrel terminal 80 in the axial direction away from the inner wall 70. One end of the malleable body 400 is deformed by applying a compressive force to the counterbore 404 in the direction of the arrow in FIG. 33 with a punch or die (not shown). The other end of the flange 402 of the main body 400 is held at a fixed position with respect to the inner wall 76. This deforms the end of the body 400 radially outward, forming a rivet-like mechanical interlocking connection between the tab 90 and the adjacent end of the strip 86 of the barrel terminal 80, The barrel terminal body 62 is locked in contact with the inner wall.

  The inner grid anchor 440 shown in FIGS. 34 and 35 includes a generally flat annular disc or washer 442 inserted into the bore 68 of the barrel terminal body 62. The external peripheral compression force indicated by the arrow in FIG. 35 is applied to the outer surface of the barrel terminal main body 62 at the position of the washer 442. These forces form the recesses 444, thereby deforming the metal that forms the sidewalls of the barrel terminal body 62, and the ends of the tabs 90 and / or barrel terminal 80 strips into the washers 442 and the bores 68 of the barrel terminal body 62. Mechanically interlocking with the sidewalls of

  In FIG. 36, rivet joining techniques are used to secure the anchor 460 to the inner wall 76 of the bore 74. However, in this aspect of the invention, the contact wire 462 is joined or welded to the opposite or outer surface of the annular disk 464. In this feature, the contact wire 462 is not wrapped around the annular disk 464, but can also be wound.

  Referring now to FIGS. 37-40, there is shown an electrical connector 500 formed in accordance with the teachings of the present invention. In general, the electrical connector 500 includes conductive end features such as a holder 502, a conductive barrel socket 504, withdrawal force resistance means 506, and 508. Barrel socket 504 is described as being formed according to the method and structure shown in FIGS. 1-8 and described above by way of example only. Barrel socket 504 may take other forms, such as any of the barrel socket structures described above and shown in FIGS.

  As shown in FIGS. 37 to 40, the barrel socket 504 is attached to the bore 510 of the holder 502 that extends from the first end 512 of the holder 502. The barrel socket 504 is preferably fixedly and non-rotatably attached to the bore 510 of the holder 502 by suitable means, such as a press fit or an interference fit, with inwardly tapered sidewalls forming the bore 510. A shoulder 514 is formed in the holder 502 at one end of the bore 510 and functions as a seat that limits insertion of the barrel socket 504 into the bore 510.

  The opposite end 516 of the holder 502 can take a variety of shapes depending on the particular application of the electrical connector 500. Thus, the exemplary overall tubular shape for the holder 502 is merely an example, and the end 516 of the holder 502 may be part of the working element.

  In the illustrated structure, a bore 518 extends axially from the end 516. This bore is shown as communicating with the bore 510 through the reduced diameter intermediate bore 520. Bore 518 and 520 are sized to slidably receive a pin inserted into the inner end of barrel socket 504 attached to bore 510 of holder 502. In another aspect, at least the bore 518 may receive a stranded or bare end of a strand conductor. These are secured against movement to the holder 502 by soldering, crimping, or other conventional electrical connection techniques.

  Similarly, the conductive end form 508 can take a variety of shapes depending on the particular application of the electrical connector 500. Thus, the end feature 508 is shown in FIGS. 38, 39, and 40 as having an elongate pin 524 that extends from the first end 526 to the intermediate shoulder 528 by way of example only. A radially enlarged flange 530 projects radially outward from an enlarged surface 532 extending from the periphery of the shoulder 528. Surface 532 extends to a second end 534 opposite the end feature 508. A bore 536 extends axially inward from the second end 534 to expose a strand of conductor secured to the bore 536 by separate pins or soldering, crimping, and / or any other electrical connector joining technique. It is designed to accept the end.

  The end configuration 508 is adapted to slide into the bore 540 of the barrel socket 504 through the first end 542 of the barrel socket 504. The length of the first end portion 524 of the end configuration 508 is selected to provide a suitable insertion distance into the bore 540 of the barrel socket 504. If necessary, this insertion distance can be limited by a shoulder 528 that contacts the first end 542 of the barrel socket 504, as shown most clearly in FIG.

The withdrawal force resistance control means 506 according to the present invention includes stop means 550 having a central bore 552 having an inner diameter large enough to allow the pin 524 of the end configuration 508 to be slidably inserted. The stop means or member 550 is formed of a flexible or thin material that can deflect the inner edge surrounding the bore 552, as shown in FIGS. 38, 39, and 40. Means 554 are provided for spacing from the first end 542 of the socket 504. The spacer means 554 is in the form of a generally flat washer having a central bore 556 having an inner diameter that is larger than the inner diameter of the bore 552 of the stop member 550 and larger than the bore 540 of the barrel socket 504. Means are provided for securing the stop means 550 and spacer means 554 to a predetermined axial position relative to the first end 542 of the barrel socket 504.

  The means designated 560 for securing the stop member 550 and spacer 554 with respect to the barrel socket 504 is in the form of an end cap having a side wall 562 and an end wall 564 defining a hollow interior chamber 566. A bore 568 is formed in the end wall 564, and the bore has an inner diameter that allows the pin 524 of the end configuration 508 to be slidably inserted. The inner diameter of the bore 568 may be the same as the inner diameter of the bore 552 of the stop means 550.

  The side wall 562 of the end cap 560 is fixedly attached to the exposed end of the grid of the outer sleeve 570 and barrel socket 504, as described above and shown in FIGS. 1-37, depending on the particular construction of the barrel socket 504. Have the size to be. In one aspect of the invention, the dimensional relationship between the outer peripheral surface of the barrel socket 504 at the first end 542 and the inner surface 572 of the inner chamber 566 with the end of the end cap 560 open is an interference fit or press fit. The size is determined as follows. In another aspect, the end cap 560 may be secured to the barrel socket 504 by mechanical fasteners, soldering, or the like.

  As shown in FIG. 40, the stop member 550 in the end cap 560 fixed to the spacer 554 and the first end 542 of the barrel socket 504 is either before or after the attachment of the barrel socket 504 to the holder 502. The large inner diameter of the bore 556 forms an annular recess 580 between the end 542 of the barrel socket 504 and the adjacent inner diameter edge 582 of the stop member 550.

  The recess 580 receives protruding means 584 formed in or provided on the pin 524, as shown in FIGS. 38, 39, and 40. This protrusion means 584 may be a single enlarged protrusion extending over at least a portion of the periphery of the pin 524, a plurality of circumferentially spaced apart separate protrusions 584 in the same plane, or the present invention. Exemplary features include a single continuous annular ring that extends from the outer surface of the end portion 524 of the pin 524 radially outward to an outer edge 586 disposed at a given diameter. The diameter of the outer edge 586 of the protrusion 584 is large enough to pass freely through the inner diameter of the bore 568 of the end cap 560 and interfere with the inner edge 582 of the stop member 550. However, the insertion force deflects the inner edge portion 582 of the stop member 550 in the axially inward direction toward the end 542 of the barrel socket 504 so that the protrusion 584 exceeds the inner diameter of the bore 552 of the stop member 550 and the spacer 554. For example, 4.536 Kg to 9.072 Kg (10 lbs to 20 lbs) is sufficient to allow entry into the recess 580 formed in the bore 556. After the protrusion 584 exceeds the inner edge portion 582, the inner edge portion 582 returns to a flat shape.

  Further insertion of the pin 508 into the barrel socket 504 is limited by engagement of the protrusion 584 with the end 542 of the barrel socket 504 that cannot be radially expanded due to the end cap 560 or the outer sleeve 570. Is done. In this manner, the pin 524 is fixedly latched to the barrel socket 504, completing the electrical connection between the pin 524 and the holder 502.

  However, although the pin 524 can be forcibly removed from the barrel socket 504 of the holder 502, there is a fairly high withdrawal force that acts to force the pin 524 to be held in the barrel socket 504 under normal loads. Needed. For an electrical connector 500 formed in accordance with the present invention having components sized to provide an insertion force of, for example, 4.536 Kg to 9.072 Kg (10 pounds to 20 pounds), the withdrawal force is about 22.68 Kg ( 50 pounds). During any withdrawal that attempts to remove the pin 524 from the holder 502, the withdrawal force is applied to the holder 502, the pin 524, or both, and the protrusion 584 of the pin 524 is forced to engage the inner edge surface 582 of the stop member 550. . However, the inner edge surface 582 is prevented from deflecting axially away from the end 542 of the barrel socket 504 by the adjacent inner edge of the end wall 564 of the end cap 560 surrounding the bore 568 of the end cap 560. Is done. Since the two inner edge portions of the end wall 564 of the end cap 560 and the inner edge 582 of the stop member 550 are adjacent to each other in this way, at least a part of the inner edge 582 of the stop member 550 is axially outward. The protrusion 584 provided on the pin 524 passes through the bore 568 in the end cap 560 until the pin 508 is in contact with the holder 502 until a sufficient pulling force is applied to deform and bend into the bore 568 in the wall 564. The inner edge 582 of the stop member 550 is held in a flat position that resists the passage of the protrusion 584 until it is disengaged.

  The amount of withdrawal force resistance provided by the electrical connector 500 can be varied to suit the requirements of a particular application. The withdrawal force resistance can be changed by changing the strength of the material used to form the stop member 550, thereby providing greater or less flexibility to the inner edge 582 of the stop member 550. In order to increase or decrease the amount of force applied to the stop member 550 before deformation, the strength of the material forming the protrusion 584 on the pin 508 can be changed.

  Briefly, a unique electrical connector that uses a radially elastic electrical barrel socket that has a greater resistance to pulling out against the conductive end configuration inserted into the barrel socket than the conventionally devised radial elastic barrel socket. Disclosed. This large pull-out force resistance is provided without changing the structure of the barrel socket and can be easily varied to suit the pull-out force requirements of a particular application.

1 is a plan view of a flat sheet metal blank used in the formation of a barrel terminal for use in the present invention. It is a side view of the blank of FIG. 1 formed in the cylindrical body. FIG. 3 is a perspective view showing an interference-fit cylindrical sleeve disposed around the blank of FIG. 2. It is a perspective view which shows the next formation process of a barrel terminal. It is an expanded sectional side view which shows the next process of a formation method. It is an expanded sectional side view which shows another process of a formation method. It is a perspective view which shows another process of a formation method. It is a length direction side sectional view of the final assembly state of a barrel terminal. FIG. 6 is a longitudinal cross-sectional view of another feature of the connector and barrel terminal that can be used in the present invention. FIG. 10 is a partial longitudinal cross-sectional view of one feature of the outer grid anchor for the barrel terminal shown in FIG. 9. FIG. 10 is a partial longitudinal cross-sectional view of another feature of the outer grid anchor for the barrel terminal shown in FIG. 9. It is a length direction fragmentary sectional view which shows another characteristic of an outer grid anchor. It is a length direction partial expanded sectional view which shows another characteristic of an inner anchor in the state assembled partially. FIG. 6 is a partially enlarged longitudinal sectional view showing another feature of the inner anchor in a fully assembled state. It is a length direction partial expanded sectional view which shows another characteristic of an inner anchor in the state assembled partially. FIG. 6 is a partially enlarged longitudinal sectional view showing another feature of the inner anchor in a fully assembled state. It is a figure which shows 1 process of another formation method of another characteristic of a barrel socket. It is a figure which shows the next process of another formation method of another characteristic of a barrel socket. It is a figure which shows the further next process of another formation method of another characteristic of a barrel socket. It is a figure which shows the last process of another formation method of another characteristic of a barrel socket. FIG. 25 is a partially exploded side sectional view showing the completed electrical connector formed according to the method of FIGS. It is a figure which shows 1 process of the formation method of another barrel socket. It is a figure which shows the next process of the formation method of another barrel socket. It is a figure which shows the next process of the formation method of another barrel socket. FIG. 6 is a perspective view showing a number of means for fixedly attaching a contact tab to a sleeve. FIG. 6 is a perspective view of another feature of the electrical connector. FIG. 27 is a longitudinal cross-sectional view of the electrical connector shown in FIG. 26 with the grid inserted into the sleeve but before an angular offset is applied to the grid strip. It is a length direction partial expanded sectional view which shows another characteristic of an inner anchor in the state assembled partially. FIG. 6 is a partially enlarged longitudinal sectional view showing another feature of the inner anchor in a fully assembled state. It is a length direction partial expanded sectional view which shows another characteristic of an inner anchor in the state assembled partially. FIG. 6 is a partially enlarged longitudinal sectional view showing another feature of the inner anchor in a fully assembled state. It is a length direction partial expanded sectional view which shows another characteristic of an inner anchor in the state assembled partially. FIG. 6 is a partially enlarged longitudinal sectional view showing another feature of the inner anchor in a fully assembled state. It is a length direction partial expanded sectional view which shows another characteristic of an inner anchor in the state assembled partially. FIG. 6 is a partially enlarged longitudinal sectional view showing another feature of the inner anchor in a fully assembled state. It is a length direction partial expanded sectional view which shows another characteristic of an inner anchor. 1 is a perspective view of an electrical connector formed in accordance with the teachings of the present invention. FIG. FIG. 38 is a cross-sectional view taken along line 38-38 in FIG. 37. FIG. 41 is an exploded side view similar to FIG. 40 but showing the components of the electrical connector of the present invention in a partially assembled state. FIG. 40 is an enlarged side view showing the electrical connector shown in FIG. 39 in a latched state.

Explanation of symbols

20 blank 22 connecting web portion 24 strip 26 tab 28 cylindrical sleeve 30 first housing 32 bore 34 first end 36 opposite end 40 second housing 42 through-bore 44 first end 46 second end 50 tubular tool 52 teeth

Claims (17)

In electrical connectors,
A radially elastic barrel socket with a bore having a first inner diameter extending from the first end;
A stop member having a bore having a second inner diameter that is at least the same as the first inner diameter of the bore of the barrel socket;
The stop member is spaced from one end of the barrel socket, and the second inner diameter of the bore of the stop member and the second end of the barrel socket are between the second inner diameter of the bore of the stop member and one end of the barrel socket. Spacing means defining a recess having a third inner diameter greater than the first inner diameter of the bore;
Fixing means for fixing the stop member and the spacing means with respect to one end of the barrel socket;
A conductive member having an end pin that can be inserted into the bore of the barrel socket through the fixing means, the separating means, and the stop member; and at least one protrusion provided on the pin, the fixing means through the inner diameter of the bore formed in the separating means, the inner edge of the bore of the fixing means, and can be inserted into the recess defined by the inner edge of the bore of said spacing means, provided on the pin An electrical connector comprising: at least one protrusion that resists movement of the at least one protrusion from the one end of the barrel socket outward in the axial direction to a predetermined pulling force. The electrical connector according to claim 1, wherein the spacing means is
A spacer member having a third inner diameter bore larger than the second inner diameter of the stop member and the first inner diameter of the bore of the barrel socket, wherein the recess is a radius of the third inner diameter of the spacer member; An electrical connector formed inwardly in the direction. The electrical connector according to claim 2, wherein the spacer member is
An electrical connector that includes a flat washer. 2. The electrical connector according to claim 1, wherein the fixing means includes:
An end cap having a side wall and an end wall, wherein the end wall is formed with a bore having an inner diameter large enough to allow the at least one protrusion to freely pass therethrough, and surrounds the inner diameter of the bore; An inner edge of the end wall is disposed substantially engaged with an inner edge of the spacing means surrounding the bore of the spacing means and moves the pin axially outward relative to the one end of the barrel socket When this is the case, the electrical connector resists movement of the inner edge of the spacing means outward in the axial direction. 5. The electrical connector according to claim 4, wherein the separating means is
A spacer member having a third inner diameter bore larger than the second inner diameter of the stop member and the first inner diameter of the bore of the barrel socket, wherein the recess is a radius of the third inner diameter of the spacer member; An electrical connector formed inwardly in the direction. The electrical connector according to claim 4.
The end cap is an electrical connector attached to the one end of the barrel socket. The electrical connector of claim 6, wherein the end cap is fixedly attached to the barrel socket.   8. The electrical connector of claim 7, wherein the end cap is press fit into the barrel socket. The electrical connector of claim 1, wherein the at least one protrusion is
An electrical connector comprising a plurality of circumferentially spaced apart protrusions supported by the pins. The electrical connector of claim 1, wherein the at least one protrusion is
An electrical connector comprising a single continuous annular protrusion supported by the pin. The electrical connector according to claim 1,
The electrical connector wherein the outer diameter of the at least one protrusion is greater than the second inner diameter of the bore of the spacing means. The electrical connector according to claim 1,
The spacing means having an inner diameter portion surrounding the bore of the spacing means can be bent in the axial direction when the at least one projection of the pin is inserted, and the at least one projection can be passed through the recess. ,
The fixing means and the separation means resist the axial portion so that the inner diameter portion of the separation means is away from the one end of the barrel socket so as not to bend in the direction in which the pin is to be separated from the barrel socket. , Electrical connector. In electrical connectors,
A radially elastic barrel socket with a bore having a first inner diameter extending from the first end;
A stop member having a bore having a second inner diameter that is at least the same as the first inner diameter of the bore of the barrel socket;
The stop member is spaced from one end of the barrel socket, and the second inner diameter of the bore of the stop member and the second end of the barrel socket are between the second inner diameter of the bore of the stop member and one end of the barrel socket. Spacing means defining a recess having a third inner diameter greater than the first inner diameter of the bore;
Fixing means for fixing the stop member and the spacing means with respect to one end of the barrel socket;
Said fixing means, said separating means, and a said stop member through said barrel socket conductive member having an end pin can be inserted into board A, and a single annular protrusion portion provided on the pin, the fixed through the inner diameter of the bore formed in the means, the separating means, the inner edge of the bore of the fixing means, and can be inserted into the bore recess defined by the inner edge of the spacing means, provided on the pin An electrical connector comprising: a protruding portion that resists the movement of the protruding portion from the one end of the barrel socket outward in the axial direction to a predetermined pulling force. 14. The electrical connector according to claim 13, wherein the separating means is
A spacer member having a third inner diameter bore larger than the second inner diameter of the stop member and the first inner diameter of the bore of the barrel socket, wherein the recess is a radius of the third inner diameter of the spacer member; An electrical connector formed inwardly in the direction. The electrical connector according to claim 13, wherein the fixing means includes:
An end cap having a side wall and an end wall, wherein the end wall is formed with a bore having an inner diameter large enough to allow the at least one protrusion to pass therethrough, and surrounds the inner diameter of the bore; An inner edge of the end wall is disposed substantially engaged with an inner edge of the spacing means surrounding the bore of the spacing means and moves the pin axially outward relative to the one end of the barrel socket When this is the case, the electrical connector resists movement of the inner edge of the spacing means outward in the axial direction.   16. The electrical connector of claim 15, wherein the end cap is fixedly attached to the barrel socket. In electrical connectors,
A radially elastic barrel socket with a bore having a first inner diameter extending from the first end;
A stop member having a bore having a second inner diameter that is at least the same as the first inner diameter of the bore of the barrel socket;
Spaced the stop member from one end of the barrel socket, from the one end of the bore before Symbol second inner diameter and said barrel socket between one end of the second inner diameter and said barrel socket of said bore of said stop member A spacer member defining a recess having a larger third inner diameter, having a third inner diameter bore, the third inner diameter being the second inner diameter of the stop member and the bore of the barrel socket. A spacer member that is larger than a first inner diameter and the recess is formed radially inward of the third inner diameter of the spacer member;
Wherein a fixing means for the stop members and the spacer member fixed with respect to one end of the barrel socket includes an end cap having a side wall and end walls, one of the protruding portion freely even without least in the end wall A bore having an inner diameter large enough to pass therethrough is formed, and an inner edge portion of the end wall surrounding the inner diameter of the bore is substantially the same as an inner edge portion of the spacer member surrounding the bore of the spacer member. A fixing means which is arranged to be engaged and resists movement of the inner edge of the spacer member outward in the axial direction when the pin is moved axially outward with respect to the one end of the barrel socket;
A conductive member having an end pin that can be inserted into the bore of the barrel socket through the fixing means, the spacer member , and the stop member;
A projecting portion provided on the pin, through the inner diameter of said bore formed in said fixing means, said spacer member, said inner edge of said bore of said fixing means, and the said bore of said spacer member A protrusion that can be inserted into a recess defined by an inner edge and resists the movement of the protrusion provided on the pin from the one end of the barrel socket outward in the axial direction to a predetermined pulling force. Including an electrical connector.

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